Tier IV raises ¥17.4B in Tokyo IPO priced at top of range
What's the deal? Tier IV, a Japanese autonomous driving software company, priced its IPO at ¥1,085 per share — the top of its ¥1,015–¥1,085 range — raising roughly ¥17,449,600,000 (about $107 million). It listed on the Tokyo Stock Exchange's Growth Market on July 22, 2026, under ticker 593A.
What's the endgame? Tier IV builds Autoware, an open-source autonomous driving software stack. It supports development, testing, and integration for mobility and logistics clients, alongside turnkey systems and DevOps platforms.
Why now? The company had raised nearly ¥30 billion (about $222 million) privately, reaching a pre-IPO valuation of roughly ¥88 billion (about $654 million). Its backers include KDDIDealroom has a profile for this one. Try Dealroom →, Yamaha MotorDealroom has a profile for this one. Try Dealroom →, Sony Innovation FundDealroom has a profile for this one. Try Dealroom →, and SOMPO HoldingsDealroom has a profile for this one. Try Dealroom → — the listing gives those strategic partners a public exit path.
What could go wrong? Tier IV runs lean, with 205 employees and 80% of them in research and development. Its open-source model depends on ecosystem partners, including collaborations in China, to sustain momentum against well-funded rivals.
The signal: The top-of-range pricing points to solid investor appetite for autonomous driving technology in Japan and beyond. As the sector matures, Tier IV's open-source approach and strategic backing make it one of the segment's more closely watched public players.
Read more: AInvest
